20GB PS3 remote play?

I have a 20GB PS3 and I just bought a 4gb memory stick for the PSP. My primary intention of buying the 4gb stick was to be able to download PS1 games from the PS store, so I can store it on the PSP to play. I just did some research today and found out the 20GB can do this because it doesn't have wifi built-in. Is there anyway to make a 20GB PS3 use remote play?